Hugely underrated tip. Standard toilets are just that, a guesstimated average of the height one might need to poop relatively comfortably. Because it was originally derived from chairs (the first toilets being actual chairs with a hole), with no respect for how human anatomy developed over millions of years, in most cases it's way too high for anyone under 6 feet / 180cm. Someone should run studies on whether this influences the rates of colon cancer.
The most naturally-ergonomic toilet is actually the seatless "turkish" hole. Unfortunately it's often not the easiest to use in a hygienic manner, and it requires a lot of space. I wish someone would invest in evolving that model into something better.
